<script setup lang="ts">
import { ref, watch,onBeforeUnmount } from 'vue';
import { reqHasSpu, reqSkuList,reqRemoveSpu } from '@/api/product/spu';
import type { HasSpuResponseData, Records, SpuData, SkuInfoData, SkuData } from '@/api/product/spu/type';
//引入分类仓库
import useCategoryStore from '@/store/modules/category';
let categoryStore = useCategoryStore();
//引入相应的子组件
import SpuForm from './spuForm.vue';
import SkuForm from './skuForm.vue';
import { ElMessage } from 'element-plus';




//场景数据：0显示已有SPU；1添加或修改SPU；2：添加SKU
let scene = ref<number>(0);
//添加新的SPU按钮的回调
const addSpu = () => {
    //切换为场景一：添加与修改已有SPU的结构->SpuForm
    scene.value = 1;
    //点击添加SPU按钮，调用子组件的方法
    spu.value.initAddSpu(categoryStore.c3Id);

}
//子组件SpuForm绑定自定义事件：目前是让子组件通知父组件切换场景为0
const changeScene = (obj: any) => {
    //子组件spuform带年纪取消按钮变为场景0；展示已有spu数据
    scene.value = obj.flag;
    if (obj.params == 'update') {
        //更新留在当前页
        getHasSpu(pageNo.value);
    } else {
        //添加留在第一页
        getHasSpu()
    }
}





//分页器默认页码
let pageNo = ref<number>(1);
//每一页展示几条数据
let pageSize = ref<number>(3);
//存储已有的SPU数据
let records = ref<Records>([])

//监听三级分类Id变化
watch(() => categoryStore.c3Id, () => {
    //务必保证有三级分类ID
    if (!categoryStore.c3Id) return;
    getHasSpu()
})

//此方法执行：可以获取某一个三级分类下的全部的已有的SPU
const getHasSpu = async (pager = 1) => {
    //修改当前页码
    pageNo.value = pager;
    let result: HasSpuResponseData = await reqHasSpu(pageNo.value, pageSize.value, categoryStore.c3Id);
    console.log(result)
    if (result.code == 200) {
        records.value = result.data.records;
        total.value = result.data.total;
    }
}
//分页器下拉菜单发生变化时触发
const changeSize = () => {
    getHasSpu();
}

//存储已有SPU总个数
let total = ref<number>(0)
//获取子组件实例SkuForm
let sku = ref<any>();
//获取子组件实例spu
let spu = ref<any>()
//存储全部SKU数据
let skuArr = ref<SkuData[]>()
let show =ref<boolean>(false);

//添加SKU按钮的回调
const addSku = (row: SpuData) => {
    console.log(row)
    // 点击添加按钮切换场景为2
    scene.value = 2;
    //调用子组件的方法初始化添加SKU的数据
    sku.value.initSkuData(categoryStore.c1Id, categoryStore.c2Id, row);
}
//修改已有spu的按钮回调
const updateSpu = (row: SpuData) => {
    //切换为场景一：添加与修改已有SPU的结构->SpuForm
    scene.value = 1;
    //调用子组件实例方法获取完整已有的SPU的数据
    spu.value.initHasSpuData(row)
}
//查看SKU列表的数据
const findSku = async (row: SpuData) => {
    let result: SkuInfoData = await reqSkuList((row.id as number));
    if (result.code == 200) {
        skuArr.value = result.data;
        // 对话框显示
        show.value=true;
    }
}
//删除已有的SPU按钮的回调
const deleteSpu = async(row:SpuData)=>{
    let result:any = await reqRemoveSpu((row.id as number));
    if(result.code==200){
        ElMessage({
            type:'success',
            message:'删除成功'
        })
        //获取剩余的SPU数据
        getHasSpu(records.value.length>1?pageNo.value:pageNo.value-1)
    }else{
        ElMessage({
            type:'error',
            message:'删除失败'
        })
    }
}
//路由组件销毁前，清空仓库关于分类的数据
onBeforeUnmount(()=>{
    categoryStore.$reset();
})




</script>

<template>
    <div>
        <Category :scene="scene"></Category>
        <el-card style="margin: 10px 0px;">
            <div v-show="scene == 0">
                <el-button v-has="`btn.Spu.add`" @click="addSpu" type="primary" size="default" icon="Plus"
                    :disabled="categoryStore.c3Id ? false : true">添加SPU</el-button>
                <!-- 展示已有的spu数据 -->
                <el-table style="margin:10px 0px" border :data="records">
                    <el-table-column label="序号" type="index" align="center" width="80px"></el-table-column>
                    <el-table-column label="SPU名称" prop="spuName"></el-table-column>
                    <el-table-column label="SPU描述" prop="description"></el-table-column>
                    <el-table-column label="SPU操作">
                        <template #="{ row, $index }">
                            <el-button v-has="`btn.Spu.addsku`" type="primary" size="small" icon="Plus" title="添加SKU"
                                @click="addSku(row)"></el-button>
                            <el-button v-has="`btn.Sku.update`" type="primary" size="small" icon="Edit" title="修改SKU"
                                @click="updateSpu(row)"></el-button>
                            <el-button v-has="`btn.Sku.detail`" type="primary" size="small" icon="View" title="查看SKU列表"
                                @click="findSku(row)"></el-button>
                                <el-popconfirm :title="`你确定删除${row.spuName}?`" width="200px" @confirm="deleteSpu(row)">
                                    <template #reference>
                                        <el-button v-has="`btn.Sku.remove`" type="primary" size="small" icon="Delete" title="删除SKU"></el-button>
                                    </template>
                                </el-popconfirm>
                        </template>
                    </el-table-column>
                </el-table>
                <!-- 分页器 -->
                <el-pagination v-model:current-page="pageNo" v-model:page-size="pageSize" :page-sizes="[3, 5, 7, 9]"
                    :background="true" layout="prev, pager, next, jumper,->,sizes, total," :total="total"
                    @current-change="getHasSpu" @size-change="changeSize"></el-pagination>
            </div>
            <!-- 添加spu|修改spu的子组件 -->
            <SpuForm ref="spu" @changeScene="changeScene" v-show="scene == 1"></SpuForm>
            <!-- 添加sku的子组件 -->
            <SkuForm ref="sku" v-show="scene == 2" @changeScene="changeScene"></SkuForm>
            <!-- dialog对话框 ：展示SKU数据-->
            <el-dialog v-model="show" title="SKU列表">
                <el-table border :data="skuArr">
                    <el-table-column label="SKU名字" prop="skuName"></el-table-column>
                    <el-table-column label="SKU价格" prop="price"></el-table-column>
                    <el-table-column label="SKU重量" prop="weight"></el-table-column>
                    <el-table-column label="SKU图片">
                        <template #="{row,$index}">
                            <img :src="row.skuDefaultImg" style="width: 100px;height: 100px;">
                        </template>
                    </el-table-column>
                </el-table>
            </el-dialog>
        </el-card>
    </div>

</template>

<style scoped></style>